Composition of matter



Patented Nov. 14, 1939 UNITED STATE COMPOSITION OF MATTER Martin Muellerthe-Rhine, Germany,

benindustl'le Aktlenzes llschaft,

the-Main, Germany No Drawing.

Serial No. tion May 4, 1937, many July 8, 1933 10 Claim!- This invention relates to new and useful compositions of matter, more particularly to those which consist of an adhesive material and if desired waxes, or the like.

As is well known, the usu adapted for making up compo kind. 7

Now, the present invention makes use of the discovery'that there are certain highly polymeric hydrocarbon materials which possess certain adhesive properties and are excellently adapted for making up-such compositions of matter.

It has been found that-the high polymers of iso-oleflnes, more particularly of isobutylene are such hydrocarbon materials possessing such adhesive properties.

The polymers used according tothis invention are materials having a very high molecular weight, usually of at least about 1 000 and ranging up to a value in the neighborhood of 10,000

al adhesives are not sitlons of the said and even much higher, depending on the manner in which they are made. Such polymers may be obtained by polymerizing unsaturated hydrocarbons such as isobutylene. The polymerization may be carried out at temperatures below or preferably not exceeding 10 below zero C., and especially at between 40 and 80" below zero C.- with a catalyst of the Friedel-Crafts type such as boron fluoride, although aluminium chloride, titanium tetrachloride, etc., may also be used in many cases. The molecular weight of the polymer generally depends upon the purity of the unsaturated hydrocarbon, the catalyst and the temperature of polymerization. The higher polymers are obtained at very low temperatures and with very pure olefines. These polymers are hereinafter sometimes referred to as "hydrocarbon resins or hydrocarbon viscoresins.

It is the polymers thus obtainable which we have found to possess the aforesaid adhesive properties and to be suitable for making up the compositions of matter. I

The wide field of application of these hydrocarbon polymers will be first indicated'in a general way by explaining broadly the typical fields where these polymers may be employed, thereafter a further explanation of the invention will be given in the form of specific examples.

By using the said polymers it is possible to impregnate fibrous materials, such as cloths, textiles, leather and the like. The compositions thus obtained may be used for example for adhesive .-plasters or as waterproof protective materials and the like.

Ounradi. M chael Otto. Walter Daniel, andBiobert W wigsha! erner, Lud en-onassignorl to I. G. Far- Frankfortonappiication July .3, 1934,

Original 733,626. Divided and this applica- Serial No. 140,692. In Ger- The hydrocarbon polymers may also be used as sealing compositions.

The adhesive properties of the polymerized material may be further utilized for the manufacture of adhesive compositions for sealing wounds 5 of trees or other plants. Such a composition may for example consist of polymeric isobutylene, wax and tallow. Thus, the hydrocarbon resins are useful in the art of tree surgery, as for example for the sealing of excoriat'ed arboraceous tissuesfrom the atmosphere. r

The following examples describe the invention in detail. It should, however, be noted that our invention is not in any way limited to these examples. The parts are by weight.

Example 1 A mixture adapted for adhesive plaster is obtained by melting 40 parts of polymerized isobutylene of the specific viscosity of 4.8 (determined in a solution of 2.8 per cent strength in tetrahydronaphthalene) with parts of browncoaltar pitch.

. Emmple 2 excellent wax-like mixture for sealing wounds of trees is obtained by melting 15 parts of polymerized isobutylene of 8.2 speciflc'viscosity (determined in a solution of 2.8 per cent strength in tetrahydronaphthalene) with 10 parts of white oil (paraiiin oil) and parts of wool-grease, 3

l'lmmple 3 An adhesive plaster is obtained by placing by rolling a.- thin layer of polymerized isobutylene having a specific viscosity of between about 70 and 80 (determined in a solution of 2.8 per cent strength in tetrahydronaphthalene) on textile material. If necessary antiseptic substances may be added.

The present application is a di copending application Ser. No. 733, 3, 1934, now Patent 2,124,235.

What we claim is:

1. A composition of matter suitable for sealing wounds of plants comprising a high molecular polymer of an iso-oleflne.

2. The process of sealing wounds of plants which comprises applying thereto a high molecular polymer of an iso oleiine.

3. In the art of tree surgery. the step of applying an adhesive, flexible. plastic, synthetic hydrocarbon resin to the wound.

. 4. In the art of three surgery, the step of sealing excoriated arboraceous tissues which comprises applying an adhesiv flexible, plastic, blo- 55 on of our 26 flied July logically inert, synthetic hydrocarbon resin said tissues. I

5. The art of sealing excoriated arboraceous tissues from the atmosphere which comprises applying to said tissues a polymerized hydrocarbon viscoresin.

6. The art of sealing excoriated arboraoeous tissues from the atmosphere which comprises applying'to said tissuesa high'molecular weight polymer of isobutylene.

7. A composition for sealing wounds of trees.

comprising an adhesive, flexible, plastic, synthetic hydrocarbon resin.

4 isobutylene together with a wax.

MARTIN MUEILER-CU'NRADI. mCHAEL O'I'IO. WALTER DANIEL.

ROBERT WERNER.

Patient No." 2,180,081.

CERTIFICATE OF comcmbn. Nqvember 11;, 1939. MARTIN HU'ELLER-CUNRADI, ET AL.

Itis hereby crtified that error appe arq in'the printed apecifiation 1'' the above numbered patent reqtiirihg ccrrectibn as foilofia: Page 1, second column, line 53 claim h, for the word "three" read. tree; and that fhe said Letters, Patent shciuld be read v vith this gorrejct zibn therein that the same may. conform to the record of the cage in the Patent Office} ..S1ghed and sealed this am day or A ril; ALI); 19nd. 

